[Exercise] Implement refresh button event handler

[creativcoder]

In part b, we finished headlines but left the refresh button event handler for grab.

As an exercise, it would be great to implement the refresh button event handler.

We want the following behavior:

When the refresh button is clicked, the app should momentarily render a loading screen, and then make another get request to top-headlines endpoint and re-populate the list of articles.

Feel free to reach out for queries.

[harshadsabne]

Hi @creativcoder,
I am totally new to Rust (and hence new to egui etc too) but wanted to give this a try. I was able to do a hacky change to implement this but would like to know what would be the optimized way for the same. Here is my demo:

Thank you.

[creativcoder]

Hey that's a great start :) Thanks for trying! I can see it working as expected, but it seems to be blocked during the http fetch. If you'd like to share the branch you're working on, I can help out

[harshadsabne]

Hi there! I created a PR here: #2